package com.hzdp.netty;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;

import org.apache.log4j.Logger;

public class TimeClientHandler extends ChannelHandlerAdapter {

	protected static Logger logger = Logger.getLogger(TimeClientHandler.class);

	private final ByteBuf firstMsg;

	public TimeClientHandler() {
		byte[] req = "QUERY".getBytes();
		firstMsg = Unpooled.buffer(req.length);
		firstMsg.writeBytes(req);
	}

	@Override
	public void channelActive(ChannelHandlerContext ctx) throws Exception {
		ctx.writeAndFlush(firstMsg);
	}

	@Override
	public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
		ByteBuf buf = (ByteBuf) msg;
		byte[] req = new byte[buf.readableBytes()];
		buf.readBytes(req);
		String body = new String(req, "UTF-8");
		logger.info("Client Now is " + body);
	}

	@Override
	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
		ctx.close();
	}
}
